Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-20 and LANDSAT-9 Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 11/23/2025
| Index | Date (NOAA-20) | Time (NOAA-20) | Lat,Lon (NOAA-20) | SZA (NOAA-20 ) | Date (LANDSAT-9) | Time (LANDSAT-9) | Lat,Lon (LANDSAT-9) | SZA (LANDSAT-9 ) | Distance(km) | Time Diff (sec) |
| 1 | 11/23/2025 | 14:54:00 | 70.06, -47.18 | 90.42 | 11/23/2025 | 14:54:37 | 70.05, -47.19 | 90.42 | 0.85 | 37 |
| 2 | 11/23/2025 | 15:44:41 | -69.94, 120.32 | 89.70 | 11/23/2025 | 15:44:07 | -69.93, 120.28 | 89.70 | 1.43 | 34 |
| 3 | 11/26/2025 | 06:20:23 | -70.61, -99.60 | 88.50 | 11/26/2025 | 06:21:33 | -70.51, -98.30 | 88.61 | 49.70 | 70 |
| 4 | 11/26/2025 | 07:10:58 | 70.00, 68.66 | 90.89 | 11/26/2025 | 07:11:07 | 70.02, 68.65 | 90.91 | 2.60 | 9 |
| 5 | 11/26/2025 | 08:01:40 | -69.93,-123.91 | 89.18 | 11/26/2025 | 08:00:37 | -69.91,-123.88 | 89.20 | 2.16 | 63 |
| 6 | 11/28/2025 | 22:37:13 | -70.08, 16.99 | 88.56 | 11/28/2025 | 22:38:11 | -70.07, 16.95 | 88.57 | 1.87 | 58 |
| 7 | 11/28/2025 | 23:27:57 | 69.95,-175.50 | 91.32 | 11/28/2025 | 23:27:38 | 69.97,-175.55 | 91.34 | 3.13 | 19 |
| 8 | 11/29/2025 | 00:18:27 | -69.24, -7.14 | 89.40 | 11/29/2025 | 00:17:18 | -69.31, -8.82 | 89.32 | 66.60 | 69 |
| 9 | 12/01/2025 | 14:54:12 | -70.03, 132.83 | 88.18 | 12/01/2025 | 14:54:41 | -70.05, 132.80 | 88.16 | 2.41 | 29 |
| 10 | 12/01/2025 | 15:44:57 | 69.95, -59.75 | 91.75 | 12/01/2025 | 15:44:08 | 69.94, -59.71 | 91.74 | 1.91 | 49 |
| 11 | 12/04/2025 | 06:20:30 | 70.13, 81.12 | 92.30 | 12/04/2025 | 06:21:41 | 70.11, 81.12 | 92.27 | 2.16 | 71 |
| 12 | 12/04/2025 | 07:11:11 | -69.99,-111.35 | 87.84 | 12/04/2025 | 07:11:11 | -70.00,-111.39 | 87.83 | 2.51 | 0 |
| 13 | 12/04/2025 | 08:01:52 | 69.70, 56.39 | 91.88 | 12/04/2025 | 08:00:40 | 69.78, 55.94 | 91.96 | 19.28 | 72 |
| 14 | 12/06/2025 | 22:37:28 | 70.09,-163.06 | 92.59 | 12/06/2025 | 22:38:09 | 70.08,-163.03 | 92.58 | 1.56 | 41 |
| 15 | 12/06/2025 | 23:28:10 | -70.00, 4.39 | 87.50 | 12/06/2025 | 23:27:39 | -69.98, 4.46 | 87.52 | 3.21 | 31 |
Figure of NOAA-20 and LANDSAT-9 satellite orbits during SNOs since TLE Epoch: 11/23/2025
Download SNOs between NOAA-20 and LANDSAT-9 since TLE EPOCH: 11/23/2025 in txt file.
Historial Predications of SNOs between NOAA-20 and LANDSAT-9